Hinged Spiral Nail Stop Collar
The COS Hinged Spiral Nail Stop Collar is designed in a two-piece hinged construction, allowing it to be easily latched directly onto the casing pipe without the need to slip it over the end. An internal groove, combined with spiral drive nails, ensures a firm grip on the casing, even under challenging well conditions.
Key Benefits
- Easy installation – no threading or welding required
- Reliable holding strength with spiral nail locking system
- Hinged design makes it suitable for mid-string placement
- Low annular clearance compatibility for tight wellbores
Features
- Two-piece hinged body for quick latch-on
- Internal grooves for secure tightening against casing
- Polyester powder coating for corrosion resistance
- Available in sizes 2 7/8” to 30” (custom sizes available upon request)
Applications
- Commonly used with cement baskets, centralizers, and casing accessories
- Recommended in wells with limited annular clearance where slip-on collars are not feasible
